175 What you should know at the gas station
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Engine oil
Engine oil level check, see page 193.
Fil l qua ntity between u pper a nd  l owe r dipstick  ma rking  
level: 2.1 US qt (2.0 l).
Recommended engine oils, see Approved Service 
Products sheet.
Coolant
For normal replenishing, use water (potable water 
quality).
For further information (e.g. anticorrosion / antifreeze), 
see page 256.
Spark plugs
Approved spark plugs, see page 251.
Tire pressure
For tire pressure, refer to tire pressure label inside the 
fuel filler flap.Air conditioner
R-134a refrigerant and special PAG lubricant, see 
page 252.
Bulbs
High and low beams (Halogen): H7 (55 W),
fog lamps: H1 (55 W),
turn signal lamps, parking and standing lamps, front: 
2357 NA (28.5 / 8.3 W / 30 / 2.2 cp),
side marker lamps, front: 5 W / 4 cp
stop lamps: 1154 21 W / 32 cp,
backup lamps: 1154 21 W / 32 cp,
turn signal lamps, rear: 1156 NA 21 W / 24cp,
tail, parking and standing lamps: 67 5 W / 4cp,
rear fog lamp, driver´s side: 1155 21 W / 32 cp,
license plate lamps: 67 5 W / 4 cp
Xenon bulb for low beam: D2R (35W)
Wa r n i n g !
Because of high voltage in Xenon lamps, it is 
dangerous to replace the bulb or repair the lamp 
and its components. We recommend that you have 
such work done by a qualified technician. 
251 Technical data
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index Electrical system
We i g h t s  (see certification tag)Main Dimensions SLK 230 KOMPRESSOR SLK 320
Generator (alternator) 14 V / 90 A 14 V / 115 A
Starter motor 12V / 1.1 kW 12V / 1.7 kW
Battery 12V / 74 Ah 12V / 74 Ah
Spark plugs
Electrode gap
Tightening torqueBosch F 7 KTCR
0.039 in (1.0 mm)
15 – 22 ft.lb (20 – 30 Nm)Bosch F 8 DPER
Beru 14 FGH 8 DPUR X 2
NGK PFR 5-11
0.039 in (1.0 mm)
15 – 22 ft.lb (20 – 30 Nm)
Trunk load max.220 lb (100 kg) Overall vehicle length 157.9 in (4010 mm)
Overall vehicle width 67.5 in (1715 mm)
Overall height 50.4 in (1279 mm)
Wheel base 94.5 in (2400 mm)
Track, front 58.6 in (1488 mm)
Track, rear 58.5 in (1485 mm)